MRI in Radiation Therapy

Peer-to-peer exchange of protocols, articles and tips

The Application Tips are a platform to contribute and to continuously expand your knowledge. Share your experience with other MAGNETOM users and perfect your ability to exploit the full potential of your MAGNETOM system.

RESOLVE

TSE

SPACE

In order to optimize Radiotherapy Planning for MRI, care must be taken to reduce geometric distortions as much as possible. The RT Dot Engine is designed with optimized protocols for Radiotherapy planning and is one tool to help mitigate distortions. For users who have created their own sequences or customized certain ones, other tools may help to reduce geometric distortions. For those users, there may be several specific parameters that need to be checked for each different sequence type. The Siemens Generic View AddIn allows you to create a bespoke template for your individual needs enabling you to quickly move the AddIn from one sequence to the next to efficiently check your chosen parameters. Three examples are given for RESOLVE, TSE, and SPACE. E.g. where a T2 sequence has been optimized but a T1 is needed. The AddIn can be moved to the new sequence and the parameters checked prior to scanning.

Insights

In this section, you will learn more about the functionality and advantages of MRI and its special use in Radiation Therapy (RT).

Why MRI in RT? – The clinical motivation

Recently there is a growing interest in the use of magnetic resonance imaging in radiation therapy. This is due to the many attractive features for radiation therapy that MRI has to offer.

What is MRI and how does it work? – Part 1

In this session you will learn about the basic principles of an MRI signal and the different ways it is acquired.

What is MRI and how does it work? – Part 2

In this advanced module about MRI and how it works, you can have a closer look at how the different contrasts can be obtained, and how the MR image is generated from the Free Induction Decay signals.

Challenges in MRI in RT

In this module you will learn more about the challenges and their solutions in MRI for radiation therapy and get a better understanding of the differences between MRI for diagnostic imaging and RT planning.

In this session, we focus on how the magnet and gradient design of an MRI system influences high resolution and low distortion combined with a large field of view as the key requirements for MR imaging in Radiation Therapy.

Solving the challenges of MR in RT: Gradients, RF system and coils

We will have a closer look at the gradient and Radio Frequency coils and how they can help to solve the specific challenges of using MRI in Radiation Therapy.

Get to know more about how to ensure a consistent and high image quality, how a MR system is installed correctly and what kind of safety precautions need to be taken to ensure a safe use of the system.

1The products/features shown on this webpage are not commercially available in all countries. Due to regulatory reasons their future availability cannot be guaranteed. Please contact your local Siemens organization for further details.

2syngo.via VB10 and the syngo.via VB10 based software options are currently under development, and not for sale in the U.S., China and other countries. Due to regulatory reasons its future availability cannot be guaranteed. Please contact your local Siemens organization for further details.

3syngo.via VB10 and the syngo.via based software options are currently under development; not for sale in the U.S. and other countries. Future availability cannot be guaranteed.

The herein illustrated statements made by Siemens’ customers and physicians are based on their own and discrete opinion and do not reflect Siemens' opinion. Siemens dissociates from the content and Siemens does not intend to promote the content of the statement as true, state of the art or as Siemens opinion. The Siemens' customers and physicians have not made these statements due to any financial support or contribution by Siemens or due to any other contractual obligation. The distribution of these statements by Siemens shall only illustrate the variety of different opinions and approaches regarding MR technology.